G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting

G01T1/164—Scintigraphy

G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras

G01T1/1644—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using an array of optically separate scintillation elements permitting direct location of scintillations

Abstract

An imaging system includes an x-ray source, and means
for scanning x-rays from the source through a subject and
across the input portion (313 or 360) of an area detector (312
or 353) covering at one time only a fraction of the area detec­
tor's input. The area detector produces at its output portion a
moving representation of the x-rays being scanned across the
input. Means are provided for continuously projecting the mov­
ing representation onto a fixed portion of a second stationary
discrete solid state detector.

Scintillator screen image detecting apparatus for digital radioscopy, has mirror arrangement shielding some X-radiation which penetrates scintillator layer, such that X-radiation does not arrive directly at detector